'Own' in the Bible

I communed with mine own heart, saying, Lo, I have become great and have acquired wisdom more than all they that have been before me over Jerusalem; and my heart hath seen much of wisdom and knowledge.

And I have seen that there is nothing better than that man should rejoice in his own works; for that is his portion; for who shall bring him to see what shall be after him?

The fool foldeth his hands together, and eateth his own flesh.

For also thine own heart knoweth that oftentimes thou thyself likewise hast cursed others.